J/A+A/428/1043 Redshifts from VIMOS VLT Deep Survey (Le Fevre+, 2004)
The VIMOS VLT Deep Survey. Public release of 1599 redshifts to
IAB≤24 across the Chandra Deep Field South.
Le Fevre O., Vettolani G., Paltani S., Tresse L., Zamorani G., Le Brun V.,
Moreau C., Bottini D., Maccagni D., Picat J.P., Scaramella R.,
Scodeggio M., Zanichelli A., Adami C., Arnouts S., Bardelli S.,
Bolzonella M., Cappi A., Charlot S., Contini T., Foucaud S., Franzetti P.,
Garilli B., Gavignaud I., Guzzo L., Ilbert O., Iovino A., Mccracken H.J.,
Mancini D., Marano B., Marinoni C., Mathez G., Mazure A., Meneux B.,
Merighi R., Pello R., Pollo A., Pozzetti L., Radovich M., Zucca E.,
Arnaboldi M., Bondi M., Bongiorno A., Busarello G., Ciliegi P.,
Gregorini L., Mellier Y., Merluzzi P., Ripepi V., Rizzo D.
<Astron. Astrophys., 428, 1043-1049 (2004)>
=2004A&A...428.1043L 2004A&A...428.1043L
ADC_Keywords: Surveys ; Redshifts
Keywords: surveys - galaxies: high-redshift -
galaxies: distances and redshifts - cosmology: observations -
galaxies: evolution - cosmology: large scale structure of Universe
Abstract:
This paper presents the VIMOS VLT Deep Survey around the Chandra Deep
Field South (CDFS). We have measured 1599 new redshifts with VIMOS on
the European Observatory Very Large Telescope - UT3, in an area
21x21.6arcmin2, including 784 redshifts in the Hubble Space
Telescope - Advanced Camera for Surveys GOODS area. 30% of all objects
with IAB=24 have been observed independently of magnitude,
indicating that the sample is purely magnitude limited. We have
reached an unprecedented completeness level of 84% in terms of the
ratio of secure measurements vs. observed objects, while 95% of all
objects have a redshift measurement. A total of 1452 galaxies, 139
stars, 8 QSOs have a redshift identification, 141 of these being
unsecure measurements. The redshift distribution down to IAB=24 is
peaked at a median redshift z=0.73, with a significant high redshift
tail extending up to ∼4. Several high density peaks in the
distribution of galaxies are identified. In particular, the strong
peak at z=0.735 contains more than 130 galaxies in a velocity range
±2000km/s distributed all across the transverse ∼20h-1Mpc of the
survey. We are releasing all redshifts to the community, along with
the cross identification with HST-ACS GOODS sources on the CENCOS
database environment http://cencosw.oamp.fr .
Description:
Observations with VIMOS have been obtained between October 31 and
December 6, 2002. Observing conditions were photometric with an image
quality between 0.6 and 1.2-arcsec FWHM. We have moved the telescope,
hence the objects along the slits, in a sequence of 5 positions with
offsets -1.4, -0.7, 0, +0.7, +1.4-arcsec from the reference pointing
position. This is necessary to compute the fringing pattern produced
above 8300Å by the thinned EEV CCDs used in VIMOS, and remove it
during processing.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
vcdfs.dat 66 1599 VVDS-CDFS catalog V1.0 (Version of 26 March 2004)
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See also:
http://cencosw.oamp.fr : CENSOS Home Page
http://www.oamp.fr/virmos/vvds.htm : The VIMOS VLT Deep Survey
Byte-by-byte Description of file: vcdfs.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- HST-GOODS HST UAI designation (JHHMMSS.ss+DDMMSS.s)
21- 26 I6 --- VCDFS VVDS-CDFS sequential number
28- 37 F10.7 deg RAdeg Right ascension in decimal degrees (J2000)
39- 48 F10.6 deg DEdeg Declination in decimal degrees (J2000)
50- 55 F6.4 --- z Redshift
57- 58 I2 --- f_z Flag on z (1)
60- 66 F7.4 mag Imag VVDS I band AB magnitude (MAGAUTOI)
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Note (1): Flags as follows:
1 = 50% confidence in the redshift (Primary target)
2 = 75% confidence in the redshift (Primary target)
3 = 95% confidence (Primary target)
4 = 100% confidence (Primary target)
8 = not specified (one case) (Primary target)
9 = Single isolated emission line spectra. (Primary target)
11 = 50% confidence in the redshift (Primary QSO target)
12 = 75% confidence in the redshift (Primary QSO target)
13 = 95% confidence (Primary QSO target)
14 = 100% confidence (Primary QSO target)
21 = 50% confidence in the redshift (Secondary Identified target)
22 = 75% confidence in the redshift (Secondary Identified target)
23 = 95% confidence (Secondary Identified target)
24 = 100% confidence (Secondary Identified target)
29 = Single isolated emission line spectra (Secondary Identified target)
(Primary Target means the object which has been targeted in the VIMOS
spectral slit; secondary Target means an object which is present by
chance in the spectral slit in addition of the primary target. Thus
the secondary object is not ensured to be fully centered within the slit)
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History:
Copied at http://cencosw.oamp.fr
(End) Patricia Vannier [CDS] 02-May-2006